Aircraft tail



FIG. 1 is a side view of a bottom portion of the aircraft tail, a side view of the reverse side is a mirror image of the illustrated side;

FIG. 2 is a bottom view of the bottom portion of the aircraft tail;

FIG. 3 is a front view of the bottom portion of the aircraft tail as shown in an alternate environment of use; and,

FIG. 4 is a rear view of the bottom portion of the aircraft tail as shown in an alternate environment of use.

The evenly-spaced broken lines illustrate environmental subject matter only and form no part of the claimed design; the dash-dot-dash broken lines illustrate the bounds of the claim and form no part thereof. 

CLAIM I claim the ornamental design for an aircraft tail, as shown and described. 